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03-31-2009, 08:04 AM
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The range rod set I got from Brownells has three different .22 heads in it. Can someone explain the differences to me?
One is marked .22C, or possibly .226; the stamping is so tight it is hard to read. Another is marked K-22 .22; the third has no markings at all, which I am provisionally taking to mean that is the stock .22LR head.
I suppose I could dig out a micrometer and find out which one is .222, which .223 and which .224, if those are indeed the relevant diameters. But I am not sure which head is appropriate for which S&W revolvers. (Not that this is a tough question for me at the moment, since my only S&W .22 is a Model 53.)
As an aside, I will note that the range rod set was a little disappointing. Some of the heads were not marked at all, which is no problem when there are clear diameter differences. But the two .32 heads are unmarked, so I don't know at a glance which is for .32-20 and which for .32 S&W/H&R Magnum (the specs from the Brownells web site). The .44-40 head is also unmarked, but can be identified by elimination. Also, a couple of the heads had either soot or some kind of thick oily residue on them that needed to be cleaned off before I could use them. I'm not complaining about the straightness of the rod handles or the apparent consistent diameter of the different heads. But, boy, this kit could have used some quality control and user-friendliness testing before it was boxed and set out for sale.
David Wilson
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David Wilson
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03-31-2009, 08:04 AM
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The range rod set I got from Brownells has three different .22 heads in it. Can someone explain the differences to me?
One is marked .22C, or possibly .226; the stamping is so tight it is hard to read. Another is marked K-22 .22; the third has no markings at all, which I am provisionally taking to mean that is the stock .22LR head.
I suppose I could dig out a micrometer and find out which one is .222, which .223 and which .224, if those are indeed the relevant diameters. But I am not sure which head is appropriate for which S&W revolvers. (Not that this is a tough question for me at the moment, since my only S&W .22 is a Model 53.)
As an aside, I will note that the range rod set was a little disappointing. Some of the heads were not marked at all, which is no problem when there are clear diameter differences. But the two .32 heads are unmarked, so I don't know at a glance which is for .32-20 and which for .32 S&W/H&R Magnum (the specs from the Brownells web site). The .44-40 head is also unmarked, but can be identified by elimination. Also, a couple of the heads had either soot or some kind of thick oily residue on them that needed to be cleaned off before I could use them. I'm not complaining about the straightness of the rod handles or the apparent consistent diameter of the different heads. But, boy, this kit could have used some quality control and user-friendliness testing before it was boxed and set out for sale.
David Wilson
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David Wilson
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03-31-2009, 08:56 AM
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I suspect your range rod heads indicate .22 Centerfire, K-22 (tighter than standard), and .22 LR (standard).
Your micrometer readings will not indicate those .222", .223", and .224" diameters, since a range rod has to ride on the rifling lands for checking chamber-to-bore alignment.
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03-31-2009, 05:37 PM
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Thanks for your reply, which seems completely reasonable to me. I get the following micrometer readings:
K22 head .215
22C head .216
Unmarked head .217
If the grooves are .0035 deep, that would convert to the .222, .223 and .224 measurements I assumed in my first post.
David W.
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David Wilson
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04-04-2009, 11:21 AM
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DCWilson,
You should post your question(s) directly to Brownell's. They encourage questions to their expert gunsmiths and it's free.
I have used this service myself and they were quick and accurate in responding.
Just go to the website at http://www.brownells.com/aspx/NS/GunTech/guntech.aspx
and then click "Submit a Question"
Hope this helps.
Ron
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04-04-2009, 11:55 AM
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Thank you. I will do that.
David
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David Wilson
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09-19-2017, 07:20 AM
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I bought a S&W K-22 range rod to check alignment. It does not seem to fit in my 1947 K-22. Ideas?
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09-19-2017, 07:28 AM
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Quote:
Originally Posted by RonJon
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This link doesn't seem to work anymore. It does not go to a guntech submissions.
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09-19-2017, 10:53 AM
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The difference in diameters is probably due to different depth of rifling on various firearms. The easy way to do it is to check the fit of each size in the barrel, then use the one with the tightest slip fit. I wouldn't worry about markings or numbers, since there will be variations due to manufacturing tolerances anyway.
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09-19-2017, 11:17 AM
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Quote:
Originally Posted by Toolguy
The difference in diameters is probably due to different depth of rifling on various firearms. The easy way to do it is to check the fit of each size in the barrel, then use the one with the tightest slip fit. I wouldn't worry about markings or numbers, since there will be variations due to manufacturing tolerances anyway.
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Thanks. Guess I'll have to buy a different one.
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09-19-2017, 07:12 PM
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Quote:
Originally Posted by sikacz
I bought a S&W K-22 range rod to check alignment. It does not seem to fit in my 1947 K-22. Ideas?
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Clean your barrel most diligently. I usually ran into this on .38s & .357. If that doesn't do it, contact your source of the range rod. Wouldn't be the first time someone at the source dropped the wrong part in a bag. Rifling specs may also have changed.
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